These entries are queried from radb.net using whois, you can try my project getting these.
:AS208148 route6: 2407:a0c0::/32 descr: Vultr Customer Route origin: AS208148 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20220924 #16:38:27-14400 source: RADB last-modified: 2023-11-13T16:12:31Z rpki-ov-state: valid route6: 2a0f:5707:ab00::/44 org: ORG-PCH4-RIPE origin: AS208148 mnt-by: JUMPSKY-MNT mnt-by: EMZET-MNT created: 2019-09-26T19:49:47Z last-modified: 2022-09-18T17:45:54Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: valid route6: 2a0f:5707:ab00::/44 descr: Vultr Customer Route origin: AS208148 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20221210 #00:38:42-18000 source: RADB last-modified: 2023-11-13T16:13:12Z rpki-ov-state: valid route6: 2a0f:5707:ab01::/48 descr: Vultr Customer Route origin: AS208148 notify: network [at] choopa.com mnt-by: MAINT-AS20473 changed: network [at] choopa.com 20190925 #10:01:35Z source: RADB last-modified: 2023-11-13T15:57:48Z rpki-ov-state: valid route6: 2a13:aac4:f010::/44 origin: AS208148 mnt-by: lir-hk-lir-1-MNT created: 2024-02-20T15:36:48Z last-modified: 2024-02-20T15:36:48Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: valid